Ecology Summary - Cottus cognatus

Língua:

Ref. principal	Scott, W.B. and E.J. Crossman, 1973
Notas	Inhabits rocky riffles of cold streams, rocky areas of lakes (commonly at 90-106 m depth), springs and their effluents (Ref. 5723). Occurs in rocky reefs, prefering rock substrate for protection from common predators (Ref. 46644). Moves into shallow water to spawn (Ref. 27547). In some areas, they are common in brackish water (Ref. 27843), presumably moving to and from fresh water, at least for spawning (Ref. 27547). Feeds mostly on aquatic insect larvae and nymphs but also on crustaceans, small fishes, and plant materials (Ref. 1998).

Ref. principal

Scott, W.B. and E.J. Crossman, 1973

Notas

Inhabits rocky riffles of cold streams, rocky areas of lakes (commonly at 90-106 m depth), springs and their effluents (Ref. 5723). Occurs in rocky reefs, prefering rock substrate for protection from common predators (Ref. 46644). Moves into shallow water to spawn (Ref. 27547). In some areas, they are common in brackish water (Ref. 27843), presumably moving to and from fresh water, at least for spawning (Ref. 27547). Feeds mostly on aquatic insect larvae and nymphs but also on crustaceans, small fishes, and plant materials (Ref. 1998).

Aquatic zones / Water bodies

	Marine - Neritic	Marine - Oceanic	Brackishwater	Freshwater
Marine zones / Brackish and freshwater bodies	zona supra-litoral zona litorânea zona sublitoral	epipelágico mesopelágico epipelágico abissalpelágico hadopelágico	Estuários/lagunas/áreas estuarinas manguezais pântanos/brejos	rios/córregos lagos/lagoas Cavernas exclusivamente

Highighted items on the list are where Cottus cognatus may be found.

Habitat

Substrato	Hard Bottom: rocky;
Substrato Ref.	Page, L.M. and B.M. Burr, 1991
Habitats especiais
Habitats especiais Ref.

Associações

Ref.
Associações
Associada com
Comentários sobre associação
Parasitismo

Alimentação

Tipo de alimentação	mainly animals (troph. 2.8 and up)
Tipo de alimentação Ref.	Scott, W.B. and E.J. Crossman, 1973
Hábito alimentar	hunting macrofauna (predator)
Hábito de alimentação Ref.	Scott, W.B. and E.J. Crossman, 1973

Trophic Level(s)

Estimation method	Amostra original		População virgem (não pescada)		Nota
Estimation method	Troph	s.e.	Troph	s.e.	Nota
Da composição da dieta
Dos itens alimentares individuais	3.37	0.47			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.

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Aquatic zones / Water bodies

Habitat

Associações

Alimentação